Temporary binder.



No. 764,413. Y PATENTED JULY 5, 1904.

A. T. BAXTER. TEMPORARY BINDER.

APPLICATION FILED AU'G. 15. 1903.

T1' Z 'J j 577 N0 MODEL.

fd JY WITNESSES.' I INVENTUI? q A TTRNEYS UNITED STATES Patented July 5,1904.

PATENT OEEIcE.

ALFRED T. BAXTER, OF NEW YORK, N. Y., ASSIGNOR TO NATIONAL BLANK BOOKCOMPANY, OF NEV YORK, N. Y.

TEMPORARY BINDER..

SPECIFICATION vforming part of Letters Patent No. 764,413, dated July 5,1904.

Application 1xilefl August l5, 1903. Serial No. 169,627. (No modelJ Toal?, whom, it may concern:

Be it known` that I, ALFRED T. BAXTER, a citizen of the United States,and a resident of the city of New York, borough of Brooklyn, in thecounty of Kings and State of New York, have invented a new and ImprovedTemporary Binder, of which the following' is a full, clear, and exactdescription.

My invention relates to improvements in devices for holding loose leavesor sheets in a secure manner, the same being commonly known y astemporary binders.

The improvement which I have made is directed more particularly to theelement known in some classes of binders as the postthat is, the spindleor pin over which the leaves are slipped and on which they are heldorconfined usually by a locking-Slat, which is adapted to haveinterlocking engagement with the post at different points, according tothe thickness of the mass of leaves.

The object that I have in view is to provide an improved form of postcapable of eXtension or prolongation on the gradual accumulation of theleaves, said post having its members interlocked and held in asecurepositive manner and always presenting the ratchetteeth on its severalmembers in position i'or elngagement with bolts or dogs on the lockingsat.

Further objects and advantages of the invention will appear in thecourse of the subjoined description, and the actual scope thereof willbe defined by the annexed claims.

VReference is to be had to the accompanying drawings, forming a part ofthis speciiication, in which similar characters of reference indicatecorresponding parts in all the iigures.

Figure 1 is a vertical sectional elevation taken transversely throughthe temporary binder on the line l 1 or' Fig. 2 and illustrating myimprovements. Fig. 2 is a horizontal sectional plan view in the plane ofthe dotted line 2 2 of Fig. l. Fig. 3 is a vertical transverse sectionalelevation, the plane of the section being indicated by the dotted line 33 of Fig. l, looking in the direction of the arrow; and Fig. 4 is adetail perspective view of one section of the extensible post.

member thereto, although the post member may be attached in a permanentmanner to the cover A by any other suitable means. Y

This member B of the post is hollow or provided with a longitudinalpassage U, and the upper end ot said member is provided with adovetailed tenen c, said tenon being' arranged centrally with respect tothe post member and providing shoulders on opposite sides oi said postmember.

Each post may consist of two or more members, such as O D E. The membersO and D of the post are complements one oi the other, each ot' saidmembers having a dovetailed recess d at one end and the dovetailed tenonc at theother end. The parts may be assembled for the tenen of onemember to enter the recess of the other member, so as to secure thedesired interlocking of the members one to the other endwise in series,thereby preventing separation ol the several members in an endwisedirection. the post is provided at its lower end with a dovetailedgroove d, which may have interlocking engagement Awith the dovetailedtenon on either of the other members B, C, and D of the post, accord ingto the number of leaves which are to be contained in the binder. It isevident that if a small number of leaves are to be used the post membersO D may be omitted and the member E may be intel-locked directly withthe memberfB; but as the number ol leaves increase the members O and Dare added successively to the member B and to one another, in which casethe member E is coupled to the members O or D, as the case may be.

The members C, D, and E are hollow or The upper member E of providedwith longitudinal passages similar to the passage and these passages ofthe several members are adapted to receive the internal locking-pins FGr. as shown by Fig. 1. The locking-pin F is adapted to be slipped intothe members B and C of the post in a way to prevent lateral separationof the tenons from the grooved ends of said members; but the locking-pinG is adapted to enter the members D E of the post and to have lockingengagement with the member E and with the upper cover A. Thislocking-pin Gr is provided with an enlarged and male-threaded portion gand with a head g'. The upper member E is provided with a reduced upperextremity e, forming an annular shoulder e, said reduced end beingthrust through an opening c', which is provided in the metallic plate ofthe cover A. The post member E is provided in its reduced end portion ewith a female thread, and when the pin G is thrust into the members E Dsaid pin may have its threaded portion g screwed into the femalethreadedportion e of the post member E, whereby the head 'g' of said pin isadapted to bear on the outside upper cover A in a way to bind the coverlirmly to the upper ends of the posts.

It will be seen that the locking-pins F G pass through the several.members of the post in a way to prevent them from moving laterally oneupon the other, and thereby coniine the post members in their alinedrelation. If it is desired to shorten the post, the pin G is removed byunscrewing it from the member E, after which the cover A"may bedisconnected and one or more of the members C D E may be removed. If ashort post is desired, the pin F is removed and the member E is coupleddirectly to the member B, after which the pin G is inserted in order toattach the cover A to the short post and to retain the members B and Ein operative relation. If the size of the book increases, the member Cmay be coupled to the members B and E, and the pin G is used to hold themembers in position and to attach the cover A to the post.

I prefer to employ two posts constructed as just described in thebinder, and these sectional posts are provided on their opposing faceswith the series of ratchet-teeth indicated at 7L, each member of thepost having a number of said ratchet-teeth. The tenons and grooves areprovided in the members ofthe post, so that the ratchet-teeth will takethe proper positions when the post members are coupled together byfitting the tenon of one post member in the groove of the other postmember, thus insuring precision and certainty in the assemblage of theparts comprising the posts.

As is usual in some classes of binders, the posts support a locking-SlatI, which is tted slidably over the posts and is adapted to rest upon thegroup of leaves .contained in the binder. This locking-Slat is providedwith suitable devices adapted to have engagement with the ratchet-teeth7L of the posts in a way to prevent the slat from lifting under theresistance of the leaves. In Fig. 2 I have shown a suitable form oflocking mechanism adapted to be carried by the slat I, and in thisligure the slat is shown as being of hollowed or chambered constructionfor the accommodation of bolts J. The bolts are confined for slidablemovement within the chambered slat by suitable devices, and they arenormallyimpelled in opposite directions by springs y'. The free ends ofthe bolts are presented for engagement with the teetlrof the ratchets Lon the two posts, and the inner ends of said bolts have overlappingrelation yto allow a key to have engagement therewith for the purpose ofretracting the bolt simultaneously from engagement with said ratchets ofthe posts.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. In a temporary binder, an eXtensible post consistingof sections provided with tenoned and grooved ends adapted forinterlocking engagement, and means for holding the members againstlateral separation.

2. In a temporary binder, a sectional post consisting of hollow members,one member being provided with a dovetailed tenon and the other memberhavinga dovetailed groove adapted to receive said tenon and to haveinterlocking engagement therewith to hold said members against endwiseseparation, and means within the hollow members for confining themembers against lateral separation.

3. In a temporary binder, a sectional post having hollow members eachprovided with a series of ratchet-teeth, one of said members beingprovided with a dovetailed tenon and the other with a dovetailed groove,and a pin insertible in said hollow members for holding them againstlateral separation.

4. In a temporary binder, a sectional post ,having its members providedwith ratchetteeth, two or more of said members having dovetailed tenonsand dovetailed grooves, and a locking-pin insertible in the members ofthe post and adapted to have interlocking engagement with one of saidmembers.

5. In a temporary binder, the combination with leaves, of post membersattached to one of the covers and provided with dovetailed tenons, otherpost members having ratchetteeth along one side and grooved and tenonedends interlocked with the first-named post members, and threaded pinsscrewed into upper post members and conlining an upper cover thereon.

6. In a' temporary binder, a separable post IOO IIO

ends by interlocking tongue-and-groove joints and held thereby againstseparation endwise, and means extending across the joints between themembers for coniining them against lat eral separation.

7. In a temporary binder, a separable post havinga plurality of hollowmembers coupled endwise by interlocking tongue-and-groove joints, andpins insertible in said members and extending' across the joints betweenthem for holding the members against lateral separation.

8. In a temporary binder, aseparable post havingaplurality of hollowmembers coupled endwise by interlocking joints, suitable covers to whichthe end members are fitted, and a headed screw having threadedengagement with one member of the post and clamping the cover firmly tosaid post, said screw eX- tending into the separable post and across thejoint between the members of said post.

9. In a temporary binder, suitable covers, a separable ratchet-posthaving hollow mem bers coupled endwise by interlocking joints, onemember or' the post being fixed to one cover and another post memberiitted to the other cover, and a screw threaded into a post member andclamping the cover thereto, said screw extendingl into the hollow postand across the joint between the members thereof. In testimony whereof Ihave signed my name to this specification in the presence of twosubscribing witnesses.

ALFRED T. BAXTER. Witnesses: JNO. M. RITTER, H. T. BERNHARD.

